Fluid-actuated vise.



@named Nov. 30, 1909.

,G AH

FLUID' AGTUATBD VISB. APPLICATION FILED APRfM, 1909.

` 1' J- SISTBK- a; J.; SPINKA.

' donn` sIsltLx. Nn :r'aMs smarriti;v orf arriendo, ILLINOIS.

rturnfacmun'rnnj vIsE.

To all whom it may concerni' l ,v

Be it known that we, JOHN Sls'rnxtand JAMES SPIN xA, citizensl of-the United States,

and residents'of the' city of Chicago, county of Cook, and State of` Illinois,-have invented' new and useful Improvements iuy Fluid-Ac"- i tuated Vises, of which theI followingis a specification.

Our invention relates by Huid pressure. Y, f

The object of` our invention is toy rovide to vises operated a vise ofithe charactermentioned kwhlch'willV be quickfacting and thoroughly efficient in its operation and one which will lbefstrong and durablel and comparatively simple ot` constructiom l Other objects will appear 'hereinaften` 1 With. these object-s` invview our invention consists in avise characterized as above menfy tioned andy in certaindetailsof construction.

and arrangement of parts allas'will be here inafter fullyv descr1bed"`and part-iculai-ly pointed out in theclaims. I, 'e 'j 01u'. invention will'be more readily ,under-y stood by `reference to v vthe accompanying drawings forming. a part othis "specifica-1 Figure 1 is al sectional side elevationof the preferred form ofembodimentfof our iinven-l tion, and Fig.2 is avertcaltransverse sec-l tion taken on line :r-wofFig. 1.

Referring now to the drawings 1 iI'1dicates"l the fixed jaw of our visethe same being suitably secured, preferably` through the flangedbase bench or any other suitable/support 5.' Having its horizontally 'extending preferably rectangularly formed shank 6 slidably. rest,- ing in the base portion 3 of the jaw 1, such .portion acting as a guide therefor and lpreventing rotary movement thereof, isa movable vise jaw 7 adapted to coact with the jaw 1. Said jaws are preferably provided with coactingv pipe jawsor grips `8 detachably secured therein bymeans ofaremovable pins 9.

-slidable dove-tailed connection with said plate, as clearly shown in Fig. 2, thereby adapting the latter to revent all relative lateral movement of sai a longitudinal direction.`

Secured as by bolts Mandnuts. 15 thread` by boltsl 2 passing 3 thereof and nu'ts 4-threaded upon saidy bolts, tothework `Cates-the operating vjaw other than-in;

j l. f Srecinaaba'q; Letteraramt.` ,Patentedv Nov. 30,1909; Application filed A pril 14, 1909. Serial No.

'suppo1't5, the `longitudinal. axis thereof being vin yvertical'alinement with the line oflnovement of the vise-jaw 7 isa cylinder 16' fin 'whichfis mounted the piston` 17l carried `upon the extremity of t-lie'piston rod 18. n- #terpo'sedi betweenI the rearward side of said piston and 'the rearhead 19 of the cylinder y16,@tlne latter beingV formed withl a reduced y'portion or housing 2()V for the reception thereof, is ahelical` compression spring 21y adapted to normally hold the piston 17 in a position at the forward extremity of said cylinder.

22 indicates a rockerarm mounted at Substantially its center upon a pin forosciLY latory movement in a slot24providedcin the `support adjacent thejaw 7 and rearward extremity ofthe cylinder 1,6 in alinement withy the line of `movement of the former and the axis of' the latter. Longitudinally extending through the jaw 7 and. shank 6 thereof; the same being rigidlyl secured therein by reason 4*of f its enlarged preferably squared head 25 abutting the outward end `=surface of"'said jaw and' a nut 26 threaded upon' the opposite extremity thereof in engagement with lthe outward extremit of vsaidfshank is a member 27. 28 and 29 indicatesimilar links, the same respectively connectmgjthebifurcated head 25 of the memyber27fand the upper extremitytof the arm 22, 'andthe bifurcated exteriorly projecting extremity of the piston rod 18 and the lower extremity of thearm 22. By such provision it is evident that any movement of the piston 17. will cause vthe simultaneous movement or actuation ofl theaw 7. j

With theend in view of effecting the acturocation of said piston by meansof Hui pressure,-we provide a threeway valve 30 of any ordinary or preferred design, the same being (preferably positioned uponv the support 5 a jacent the 1efthand extremity of the vise. Connected to said valve isa pipe'31 extending through the forward head 16 ofthe cylinder 16 and estab- ,lishing communication between the former andthe forwardend of said cylinder, a pipe 32v which communicates with any suitable supply of? air, water, gas or otherfluid under pressure, and an exhaust pipe 33. 34 indi- 'ofits movement or 1n ay position as shown in lever or handle of said full line in Fig. 1, communication will be established between the supply pipe 32 and the pipe 31 and hence the forward end of the cylinder 16, and when in a position at the other extremity of its movement or in a position as shown in dotted lines in said figure, communication will be established between said cylinder and the exhaust pipe 33. Hence by such provision upon turning the handle 34 to one position, the piston will be forced to the left against the tension of the spring 21 obviously causing the movement to the right of the jaw 7 and hence the closing of the vise, the position of the removable parts under such circumstances being shown in dotted lines in .F ig. 1.-` Upon turning said handle to a position at the other extremity of its movement said piston will be returned to its initial position by the spring 21, hence causing the return of the vise jaw 7 to its l initial or opened position.

` By the provision of a vise of a construction as shown and described, the provision of a fluid actuatedvise of the highest possible eliciency both in construction and operation will be ei'ected.

While we have shown whatwe deem to be the preferable form of our invention, we do not wish to be limited thereto as there might be. many changes made in the details of construction and arrangement of parts without departing from the spirit of our invention comprehended within the scope of the appended claims. Y

Having described our invention what we claim as new and desire to secure by Letters Patent is: v

l; In a visev of the class described, the coml bination of a fixed jaw, a coacting movable jaw havin al rectangular shankslidable in said fixed Jaw, a guide plate for said movable jaw in dove-tailed connection with the base thereof, a power cylinder mounted beneath said jaws having its axis disposed parallel with the line of movement of said movable jaw, a piston and piston rod carried by said cylinder, a rocker arm mounted for oscillation in the vertical planeincluding the axis of said power cylinder,llinks connecting the extremities of said rocker arm with said movablejaw and said piston rod, whereby simultaneous movement of said jaw and said piston is effected, a pipe leading from one extremity of said power cylinder, a fluid supply pipe and an exhaust pipe, a three-way valve connecting said ipes whereby communication may be establlshed between said first named pipe and either said supply pipe or said exhaust pipe,'and a compression spring provided in said cylinder 1n engagement with said iston for normally holding said movable Jaw in opened position, substantially as described.

2. In a vise of the class described, the combination of a fixed jaw, a coacting movable jaw having a rectangular shank slidable in said fixed jaw, a guide plate for said movable jaw in dove-tailed connection with the base thereof, a power cylinder mounted beneath said jaws having its axis dis nosed parallel with the line of movement o said movable jaw, the said cylinder being cornposed of a larger chamber constituting a piston chamber and a' smaller chamber constituting a guide and socket for a compression spring, a piston and piston rod carried by said cyllnder, a rocker arm mounted for oscillation in tbe vertical plane including the axis of said power cylinder, links connectin extremities of said rocker arm with said movable jaw and said piston rod, whereby simultaneous movement of said jaw and said piston is effected, a pipe leadin from one extremity of said power cylin er, a fluid supply ipe and an exhaust pipe, a threeway va ve connecting said ipes Iwhereby communication may be estab ished between said first-named pipe and either said supply pipe or said exhaust pipe, and a compression spring provided in sald cylinder in engagement wlth said iston and resting in said Isocket for norma ly holding said movable jaw in opened position, substantially as described.

In testimony whereof we have signed our names to this specification in the presence of two subscribing witnesses.

JOHN SISTEK. JAMES SPINKA. Witnesses:

HELEN F. LILLIs, JOSHUA R. H. Po'rrs. 

